Sash or screen lock



Patented Aug. 24, 1926.

EEED ivi. DAVENPORT, or Los ANGELES, cALrEoENI'A.

'sAsH on SCREEN LOCK.

Application filed June 4, 1925. Serial No. 34,812.

This invention relates to improvements in sash or screen locks and is particularly an improvementover that type Iof lock which is disclosed in my priorPatent No. 1,538,7 25, issued April 14, 1925. v

An object ofhis invention is to provide a sash lock which has an improved shoe arrangement and an improved means for actuating the shoe so as to cause it to frictionally engage the sash.

`Another object of this invention is to prO- vide a sash lock Vhaving a shoe engageable upon the sash so as to frictionally lock it, and to provide a lock controlled shoe ,engaging means which will permit the device to be embodied, as for example, upon enclosed vehicles, so that the sash forming the enclosurefcan be locked in closedposition from the outside of the vehicle, so as to prevent unauthorized opening.

A still further object of this invention is to provide an improved sash lock which is capable of locking two sash simultaneously, and to provide shoes capable of engaging the sash which are spaced from each other in an improved manner.

With .the foregoing andfother objects in View which will be made manifest in the following detailed description and specifically pointed out in the appended claims, reference is had to the accompanying drawings for an illustrative embodiment of the invention, wherein: `Y

Figure 1 is a top plan view of the improved sash or screen lock shown in locking position,

Fig. 2 is aside elevation of the lock,

Fig. 3 is a horizontal section taken upon the line 3-3 of Fig. 2,

Fig. 4 is a sectional view taken upon the line 4-4 of Fig. 1,

Fig. 5 is an end elevation takenin the direction of the arrow 5 upon Fig. 3,

Fig. 6 is a vertical section taken on. theA line 6-6 'of Fig. 3,

Fig. 7 is a vertical section taken on the line 7-7 of Fig. 5, andl Fig. 8 is a vertical section taken upon the line 8-8 of Fig. 3.`

Referring to the accompanying drawings wherein similar reference characters designate similar parts throughout, the improved sash lock consists of abox having a bottom 10 provided with upstanding sides 11 and 12. In the bottom of the box there are formed three apertures, indicated at 13, 14 and 15. The aperture 13 is positioned at the center of the bottom, and on the under side Y of the bott-om 10 there is formed a recess 16 which is adapted to receive the annular portion 17 Vof the upstanding shoe 18. The upstanding shoe A 18 constitutes the sash engaging member which .is ada ted to be positioned between the twosash both sash are positioned between .the upstanding side walls -11 and 12. The porand S, when Y tion 17 :of the sash engaging member 18 is Y pivoted to the bottom of the box as by a screw orrivet 19. The apertures 14 and115 are arranged adjacent the sides 11`and 12. The aperture 14 is adapted to receive the downwardly extending portion of the shoe 20, kwhich has secured thereto a shoe leaf 21. The shoe leaf 21 may be formed with the shoe 20 or may be a separate part attached thereto. It is preferably resilient or bendable and is disposed within a recess 22 formed in the side 11. The leaf 21 is fastened to the side wall as by a rivet R. The shoe 28 is of a similar construction'having a downwardly extending portion receivable in the aperture 15. It is provided with a shoe leaf which is resilient or bendable and which is indicated at 24. The shoe leaf 24 is rigidly fastened to the side wall 12 as by a rivet 25. It will be notedfthat the apertures 18, 14 and 15 are of such size as to provide a considerable clearance about both of the shoes 20 and 28 and about the center sash engaging member 18, so as to permit a limited movement of these parts relatively to the box. 4

In the portions of the bottom 10 which are disposed between the apertures 18 and 14 and between the apertures 18 andV 15 there are formed bores which slidingly receive spacing pins 26. These spacing pins are slightly shorter than the width of the respective sash S and S. On one side of the box there is formed an outwardly extending casing, as indicated at'27. A On this casing there is mounted an inwardly extending stud 28, which provides a pintle lfor theV spending recess 31 formed upon the lever 29.

` rgage and lfree the sash-y S.

Y ward the center ofthe box.

n' o, n

The opposite side of the lever is rounded, as indicated at 32, and engages the outer side of the shoe 23. v j

rIhe operation of this shoe engaging means is as follows: YV hen the lever 29 is in such position that the wedge shaped boss is disposed within the recess 31, the lever lwill occupy its retracted position within the housing or casing 27 and the resiliency of the shoe leaf 24V will move the shoe 23 into disengaging position so that it will disen- If the lever 29 is partly rotated-upon the stud 28, it will cause the recess 3l to be moved out of register with the wedge sliapedboss 30, `which will cause the lever to be bodily shifted toshoe 23 in\\fardly,`bending the shoe leaf 24. The shoev 23 vin this sash' S, if it is-positionedy within'the box, and if the sash S isnotwithin the box, the

vshoe 23 engages the end of the adjacentspacer pin 26. The opposite'end of the spacer pin engages t-he sash engaging member 13 and will move it toward theside 11, causing the sashengaging `member 18 to engage-'the sash S if it is present. If the sash S is also missing, the sash engaging member 18 engages the other spacer pin 26 which in turn` engages the shoe 20. Obviously, if the sashv S is within the box and ythe sash S is missing, the-sash S will be compressed or frictionally the shoe 23 and the sash engaging member 18 with the sash'engaging member engagv ing the end of the spacer pin 26, most vadjacent the shoe 20.` In this manner by'rotation of the lever 29,y either oneor both of` the sash S or Scan within the box.

Gn the side 11 of the box there is formed a boss or projection 33 adapted to receive parts offa key controlled lock which controls theinovement of the shoe 20, so that if 'the improved sash lock is locked from thc be frictionally locked side 11', unauthorized opening of the sash Y will be prevented.v Any suitable type of lock can be employed which is capable yof shifting the shoe 20. On the drawing there is disclosed an aperture 34e formed in the boss 33. This aperture is interiorlyy threaded and receives an exteriorly threaded sleeve 35,

' the sleeve.

Washer 37- The key which has grooves formed upon its interior.

This forces the position engages the gripped between to engage a sash 12 of the box. The shoe 20 will move bending ythe shoe leaf 2l, and this movement of the shoe 20 will cause either one or both of the sash S or S to be locked. After the sleeve 35 has been rotated suihciently to lock the sash, `the key-can be withdrawn and thus prevent an unauthorized opening ofthe sash. The apertures 38 formed in the bottom of the box are for the reception of screws or nails in mounting the box in the desi-red position so that it may receive the sash S and S. Y' y Itwill be obvious that the sash lock of the improved construct-ion can be modified invarious manners and that the box Vmay be so constructed as to receive three or more sash. Also, fthe. box can -be so employed as to lock a single sashjby using the lever 2%) and the lock on the box. i

It will be understood that various changes claims.

l claim: l

1. A'sash or screenv lock comprising a bo'x, a resilient shoe secured to box, and Y lever and cam means mounted upon the side ofthe box for moving the shoe so as to cause it to frictionally engage a sash positioned within the box. l

2. A sash or screen lock comprising a box,

of the invention as kdefined by the appended shoes mounted upon the box adjacent bothV sides thereof, and shoe engaging means upon both sides of the box'and associated with each shoe whereby either shoe may be caused positioned within the box, each of said shoe erable independently of the other.

3. A sash or screen lock comprising aA box, shoes mounted yupon the box adjacent both sides thereof, and shoe engaging means upon both sides ofthe box and associated the side ofthe engaging means being op-` in the detail of construction maybe made l without departing'from the-spirit or scope with each shoe whereby either shoe may be caused to engage a sash positioned Within the box, each of said shoe engaging meansV being operable independently of the other, one of said shoe engaging means being key controlled.` A Y l t. A sash or screen lock comprising a box capable of receiving two sashes simultane-V ously, a sash engaging member movably mounted upon the box adapted to be positioned between the two sashes, a shoe mounted upon the side of the box, meansfor causing said shoe to engage one of the sashes,

and a spacer member slidable upon the box between said shoe and sash engaging member. Y Y A v5. A sash or screen lock, comprising a box capable of receiving two sashessimultaneously, a sash engaging member movably mounted Vupon the box adapted to be positioned between the two j Y v j saslies, shoes mov-l ably mounted upon both sides of the box,-A

shoe engaging means mounted upon both sides of the box capable of engaging said shoes, and spacer members slidable upon the box between said sash engaging member and said slices.

6. A sash or screen look comprising a box capable of simultaneously receiving two sashes, a sash engaging member pivoted adjacent the center of the box adapted to be positioned between the sashes, resilient shoes mounted upon the box adjacent the sides thereof, shoe engaging means for forcing said shoes into engagement with the sashes, and spacer' pins slidable upon the box between the sash engaging member and the shoes.

7. A sash or screen lock comprising a box capable of simultaneously receiving two sashes, a sash engaging member pivoted adjacent the center of the box adapted to be positioned between the saslies, resilient shoes mounted upon the box adjacent the sides thereof, shoe engaging means for forcing said shoes into engagement with the sashes, and spacer pins slidable upon the box between the sash engaging member andthe shoes, one of said shoe engaging means being controlled by a. lock.

8. A sash or screen lock comprising a box having a bottom and side walls, a movable shoe mounted upon the box adapted to frictionally engage a sash positioned therein, shoe engaging means for forcing the shoe into engagement, and vmeans for preventing unauthorized operation of the shoe engaging means mounted upon a side of the box.

9. A sash or screen lock comprising a box, a shoe movable upon the box adapted to fric tionally engage a sash positioned therein, and lever and cam means mounted upon the box for moving the shoe, so as to cause it to engage the sash, said lever being movable about an axis transverse of the box.

1.0. A sash or screen lock comprising a box having a bottom and two side walls between which a sash may be positioned, and

means for friotionally engaging the sash to hold it between the side walls including a lever mounted for rotation upon a side wall of the box around an axis perpendicular to the side wall of the box.

11. A sash or screen lock comprising a box having a bottom and two side walls between which a sash may be positioned, and means for frictionally engaging the sash to hold it between the side walls comprising a sash engaging member and a lever mounted for rotation upon a side wall of the box and rotatable about an axis perpendicular to the side wall of the box, said lever serving upon rotation to force the sash engaging member into engagement with the sash.

l2. A sash or screen lock comprising a box having a bottom and two side walls between which a sash may be positioned, and means for frictionally engaging the sash to hold it between the side walls comprising a resilient sash engaging member secured to a side wall of the box and a lever mounted for rotation upon the side wall of the box, said lever being adapted upon rotation to engage the sash engaging member and force it into engagement with the sash.

13. A sash or screen lock comprising a box having a bottoni and side walls between which two sashes may be simultaneously positioned, a central sash engaging member movable relatively to the walls of the box and adapted to be positioned between the sashes, sash engaging means mounted adjacent each side wall, and means for moving each of the last mentioned sash engaging means independently of the other. v

14. A sash or screen lock comprising a box having a bottom and side walls between which two `sashes may be simultaneously positioned, a central sash engaging member pivoted to the box and movable about an axis perpendicular to the bottom, a sash engaging means mounted upon the box adjacent one of the side walls, and means mounted upon the mentioned side wall of the box for forcing said sash engaging means into engagement with the sash.

In testimony whereof I have signed my name to this specification.

FRED M. DAVENPORT. 

